AQ EXPERT Instruction & Operations Manual
Version 1.13
Page 4 of 63
SENSORS
1. AIR QUALITY SENSORS
– ELECTROCHEMICAL
SENSOR
RANGE
RES.
ACCURACY
CARBON MONOXIDE (CO)
Std Range
0 - 200 ppm
0.1 ppm
+/- 1 ppm of rdg,
+/- 0.2 ppm
CARBON MONOXIDE (CO)
High Range
0 - 2000 ppm
1 ppm
<300ppm, 10ppm
To 2000ppm, 4%
OXYGEN (O2)
Std Range
0
– 25%
0.1%
0.1% Vol.
NITRIC OXIDE (NO)
Std. Range
0 - 250 ppm
0.1 ppm
+/- 2 ppm of rdg
NITRIC OXIDE (NO)
High Range
0 - 2000 ppm
1 ppm
<100ppm, 5ppm
To 2000ppm, 4%
NITROGEN DIOXIDE (NO
2
)
Std. Range
0 - 20 ppm
0.1 ppm
+/- 0.5 ppm of rdg
NITROGEN DIOXIDE (NO
2
)
High Range
0 - 1000 ppm
1 ppm
<100ppm, 5ppm
To 1000ppm, 4%
SULFUR DIOXIDE (SO
2
)
Std. Range
0 - 20 ppm
0.1 ppm
+/- 0.5 ppm of rdg
SULFUR DIOXIDE (SO
2
)
High Range
0 - 2000 ppm
1 ppm
<100ppm, 5ppm
To 2000ppm, 4%
HYDROGEN SULPHIDE
(H
2
S)
Std. Range
0 - 100 ppm
1 ppm
+/- 4 % of rdg,
+/- 0.5 ppm
OZONE (O
3
)
Std. Range
0
- 5 ppm
1 ppb
FORMALDEHYDE (CH
2
O)**
Std. Range
0
- 10 ppm
1 ppb
2% ± 30 ppb
*Note: All Accuracies indicated above are under Laboratory Conditions
**
This sensor may have interference from H
2
S, H
2
, CO, and other reducing gases such as alcohols
2. AIR QUALITY SENSORS
– NON-DISPERSIVE INFRARED (NDIR) SENSORS
SENSOR
RANGE
RESOLUTION
ACCURACY
CARBON DIOXIDE (CO
2
)
Std Range
0
– 5000 ppm
10 ppm
2% of Rdg. + 10 ppm
CARBON DIOXIDE (CO
2
)
High Range
0.0% - 20.0%
0.1%
+ 3% rdg.
